面包屑

2023-12-25 1次

function breadcrumbs()
{
    $seperator = '<b></b>';
    $before = '<span class="current_page">';
    $after = '</span>';
    if (!is_home() && !is_front_page() || is_paged()) {
        global $post;
        $homeLink = home_url();
        echo ' <a href="' . $homeLink . '/">' . __('Home', 'domainname') . '</a> ' . $seperator . ' ';
        if (is_category()) {
            global $wp_query;
            $cat_obj = $wp_query->get_queried_object();
            $thisCat = $cat_obj->term_id;
            $thisCat = get_category($thisCat);
            $parentCat = get_category($thisCat->parent);
            if ($thisCat->parent != 0) {
                $cat_code = get_category_parents($parentCat, true, ' ' . $seperator . ' ');
                echo $cat_code = str_replace('<a', '<a ', $cat_code);
            }
            echo $before . '' . single_cat_title('', false) . '' . $after;
        } elseif (is_day()) {
            echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $seperator . ' ';
            echo '<a  href="' . get_month_link(get_the_time('Y'), get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $seperator . ' ';
            echo $before . get_the_time('d') . $after;
        } elseif (is_month()) {
            echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $seperator . ' ';
            echo $before . get_the_time('F') . $after;
        } elseif (is_year()) {
            echo $before . get_the_time('Y') . $after;
        } elseif (is_single() && !is_attachment()) {
            if (get_post_type() != 'post') {
                $post_type = get_post_type_object(get_post_type());
                $tax = get_post_taxonomies($post->ID);
                $slug = $post_type->rewrite;
                $link = $slug["slug"];
                $args = array(
                    'taxonomy' => $tax[0],
                    'parent' => 0,
                    'number' => 10,
                    'hide_empty' => false,
                );
                $terms = get_terms($args);
                echo '<a href="' . esc_url(get_term_link($terms[0]->term_id)) . '">' . $terms[0]->name . '</a> ' . $seperator . ' ';
                echo $before . "详情" . $after;
            } else {
                $cat = get_the_category();
                $cat = $cat[0];
                $cat_code = get_category_parents($cat, true, ' ' . $seperator . ' ');
                echo $cat_code = str_replace('<a', '<a', $cat_code);
                echo $before . "Detail" . $after;
            }
        } elseif (!is_single() && !is_page() && get_post_type() != 'post') {
            $post_type = get_post_type_object(get_post_type());
            echo $before . $post_type->labels->singular_name . $after;
        } elseif (is_attachment()) {
            $parent = get_post($post->post_parent);
            $cat = get_the_category($parent->ID);
            $cat = $cat[0];
            echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $seperator . ' ';
            echo $before . get_the_title() . $after;
        } elseif (is_page() && !$post->post_parent) {
            echo $before . get_the_title() . $after;
        } elseif (is_page() && $post->post_parent) {
            $parent_id = $post->post_parent;
            $breadcrumbs = array();
            while ($parent_id) {
                $page = get_page($parent_id);
                $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';
                $parent_id = $page->post_parent;
            }
            $breadcrumbs = array_reverse($breadcrumbs);
            foreach ($breadcrumbs as $crumb) {
                echo $crumb . ' ' . $seperator . ' ';
            }
            echo $before . get_the_title() . $after;
        } elseif (is_search()) {
            echo $before;
            printf(__('%s', 'domainname'), get_search_query());
            echo $after;
        } elseif (is_tag()) {
            echo $before;
            printf(__('%s', 'domainname'), single_tag_title('', false));
            echo $after;
        } elseif (is_author()) {
            global $author;
            $userdata = get_userdata($author);
            echo $before;
            printf(__('%s', 'domainname'), $userdata->display_name);
            echo $after;
        } elseif (is_404()) {
            echo $before;
            _e('Not Found', 'domainname');
            echo $after;
        }
        if (get_query_var('paged')) {
            if (is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author()) {
                echo sprintf(__('(page%s)', 'domainname'), get_query_var('paged'));
            }
        }
    }
}